body{
    background: url("../img/operate-poster.jpg") no-repeat;
    width: 100%;
    background-size: cover;

}
.saomiao{
    position: fixed;
    top: 50%;
    left: 50%;
    margin-left: -152px;
    margin-top: -139px;
    width: 304px;
    height: 278px;
}
.saomiao img{
    width: 304px;
    height: 278px;
}
.cur{
    height: 10px;
    width: 300px;
    background: #97c619;
    display: inline-block;
    position: absolute;
    top:10px;
}